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Angular power spectrum of galaxies in the 2MASS Redshift Survey

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arxiv 1706.05422 v2 pith:HXSVXW4X submitted 2017-06-16 astro-ph.CO

classification astro-ph.CO
keywords powerspectrumangulargalaxiesgalaxymassnearbyapprox
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abstract

We present the measurement and interpretation of the angular power spectrum of nearby galaxies in the 2MASS Redshift Survey catalog with spectroscopic redshifts up to $z\approx 0.1$. We detect the angular power spectrum up to a multipole of $\ell\approx 1000$. We find that the measured power spectrum is dominated by galaxies living inside nearby galaxy clusters and groups. We use the halo occupation distribution (HOD) formalism to model the power spectrum, obtaining a fit with reasonable parameters. These HOD parameters are in agreement with the 2MASS galaxy distribution we measure toward the known nearby galaxy clusters, confirming validity of our analysis.

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Cited by 2 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. OpenAlex reports about 41 citations worldwide. Full citation record

  1. A Gaussian Covariance Matrix for Joint Pre- and Post-Reconstruction Full-Shape Power Spectrum Analysis

    astro-ph.CO 2026-08 conditional novelty 6.0 of 10

    A semi-analytical Gaussian covariance for joint pre-, post-, and cross-reconstruction power spectra is validated against mocks and reproduces parameter constraints from mock-based covariance on conservative scales.

  2. Thermal Sunyaev-Zel'dovich cross-correlations with unWISE galaxies: disentangling radio contamination, dust properties, and electron pressure

    astro-ph.CO 2026-06 unverdicted novelty 6.0 of 10

    Radio contamination must be jointly fit with tSZ and CIB in unWISE-Planck/ACT cross-spectra; its inclusion yields positive signals to ℓ ≃ 6000 that match a two-parameter generalized NFW pressure profile.

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